|
|
|
Below is the code where specific data definitions are established by your application and/or process. With this code, you will "Create" columns/fields and creating the tables/files with optional indexes:
/********************************************************
* *
* db_create: creates the data files and indexes. *
* If any of the files already exist there *
* will be an error. The files are closed *
* so all intended file modes take effect. *
* *
********************************************************/
#ifdef PROTOTYPE
VOID db_create(void)
#else
VOID db_create()
#endif
{
/* Create the data file */
if (CreateDataFile(INVENTDAT,"invent.dat",sizeof(invent),4096,ctVIRTUAL|ctSHARED|ctFIXED))
terminate("Could not create invent.dat",INVENTDAT);
/* the second parameter is no longer used */
if (CloseCtFile(INVENTDAT,0))
terminate("Could not close invent.dat after creation",INVENTDAT);
/* Create the index file */
if (CreateIndexFile(INVENTIDX,"invent.idx",25,0,0,0,4096,ctVIRTUAL|ctSHARED))
terminate("Could not create invent.idx",INVENTIDX);
if (CloseCtFile(INVENTIDX,0))
terminate("Could not close invent.idx after creation",INVENTIDX);
printf("\nSuccessfully created data files and indices");
return;
}
